Swisscom Energy Solutions AG

Any device whose MAC address begins with 64:42:14 has a network interface built by Swisscom Energy Solutions AG. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

64:42:14

Organization

Swisscom Energy Solutions AG

Address

Solothurnerstrasse 19 Olten CH 4600

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.